Angle adjusting structure for pipettor detection

Abstract

A clamping mechanism comprises a rotating column, a second motor is fixedly installed on one face of the rotating column, an annular rack is fixedly installed on the outer wall of the rotating column and located on the side edge away from the second motor, and extension rods are connected to the two sides of the bottom of the rotating column in a sliding mode. Clamping plates are fixedly connected to the inner sides of the outer walls of the two extension rods, a connecting frame is fixedly installed at the bottom of the electric sliding block, a limiting barrel is fixedly installed on one side of the connecting frame, a second supporting hoop is slidably connected to the inner wall of the limiting barrel, the bottom end of the second supporting hoop extends to the position below the limiting barrel, and the inner wall of the second supporting hoop is rotatably connected with the rotating column; a first motor is further fixedly installed on the bottom face of the second supporting hoop, an output shaft of the first motor extends to the position below the annular rack, the output shaft of the first motor is fixedly connected with a gear, the first motor is started to drive the whole clamping plate to rotate, and the pipettor on the inner side of the clamping plate is rotationally adjusted.

Description

Technical Field

[0001] This utility model relates to the field of pipette testing technology, and specifically to an angle adjustment structure for pipette testing. Background Technology

[0002] A pipette is a scientific instrument used for the precise transfer of liquids. It is commonly used in laboratory settings for sample processing, chemical reactions, and drug development. Its design allows users to easily adjust the volume of liquid to be transferred, and through the precise coordination of the pipette tip and piston, accurate aspiration, dispensing, and distribution of liquids are achieved. Pipettes not only improve experimental efficiency but also ensure high accuracy and repeatability of liquid transfer.

[0003] When testing the discharge of a pipette, it is usually necessary to ensure that the pipette tip is tilted at 45° and in close contact with the inner wall of the weighing cup. However, in the existing technology, the pipette is often repeatedly tested manually. During the test, it may be inconvenient to accurately position the angle of the pipette test. Therefore, an angle adjustment structure for pipette testing is proposed to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is as follows: When manually performing repeated tests on a pipette, it may be inconvenient to accurately position the testing angle of the pipette during the testing process.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] An angle adjustment structure for pipette detection includes an adjustment mechanism, a clamping mechanism is provided below the adjustment mechanism, the adjustment mechanism includes a top frame, an electric slide rail is fixedly installed at the bottom of the top frame, and an electric slider is fitted and slidably connected to the bottom of the electric slide rail.

[0007] The clamping mechanism includes a rotating column, a second motor is fixedly installed on one side of the rotating column, an annular rack is fixedly installed on the outer wall of the rotating column and on the side away from the second motor, and extension rods are slidably connected to both sides of the bottom of the rotating column. Clamping plates are fixedly connected to the inner side of the outer wall of the two extension rods, and the two clamping plates are symmetrically arranged on both sides of the rotating column.

[0008] The electric slider is fixedly mounted with a connecting frame at its bottom, and a limiting cylinder is fixedly mounted on one side of the connecting frame. A second support hoop is slidably connected to the inner wall of the limiting cylinder. The bottom end of the second support hoop extends to the bottom of the limiting cylinder, and the inner wall of the second support hoop is rotatably connected to the rotating column.

[0009] The bottom surface of the second supporting hoop is further fixedly installed with a motor one, an output shaft of the motor one extends below the annular rack, and the output shaft of the motor one is fixedly connected with a gear, and the outer side wall of the gear is meshedly connected with the annular rack.

[0010] As a further scheme of the utility model: the outer wall of the connecting frame and located away from the limiting barrel one side is fixedly installed with electric cylinder one, the extension end of electric cylinder one is downward, and the extension end of electric cylinder one is fixedly connected with first supporting hoop, the inner wall of first supporting hoop is rotatably connected with rotating column.

[0011] As a further scheme of the utility model: the output shaft of motor two penetrates into the rotating column, and the output shaft of motor two is fixedly connected with screw rod, the outer wall of screw rod is provided with threads on both sides, and the threads on both sides of screw rod are opposite, and the outer wall of screw rod is further provided with connecting sleeve with threads on both sides, and the bottom ends of two connecting sleeves are fixedly installed with extension rod.

[0012] As a further scheme of the utility model: electric cylinder two is fixedly installed on the upper end of the middle inner wall of rotating column, and a limiting hole is formed below the middle inner wall of rotating column.

[0013] As a further scheme of the utility model: the extension end of electric cylinder two penetrates out of the rotating column and is fixedly installed with movable rod, the middle of movable rod is fixedly installed with sliding rod, and the outer wall of movable rod and below sliding rod is further fixedly installed with push plate.

[0014] As a further scheme of the utility model: the outer wall of sliding rod is slidably connected along the inner side of limiting hole, and the push plate is located behind the clamping plate.

[0015] As a further scheme of the utility model: the two clamping plates are arc-shaped as a whole, and the inner walls of the two clamping plates are fixedly connected with buffer pads.

[0016] The utility model discloses the beneficial effects of:

[0017] (1) the utility model discloses that the arc-shaped clamping plate of both sides is held to the pipette to be detected together, and the arc-shaped clamping plate of both sides can be adjusted simultaneously and adjusted forward and backward, so that the pipette is conveniently transferred to the test point, and the spacing between the clamping plates can be adjusted, so that different models and sizes of pipettes are conveniently fixed.

[0018] (2) when the clamping plate holds the pipette, the motor one is started to drive the clamping plate to rotate as a whole, so that the pipette in the inner side of the clamping plate is conveniently adjusted, and the pipette tip to be tested is ensured to abut against the inner wall of the weighing cup. DRAWINGS

[0019] The utility model will be further described below in combination with the drawings.

[0020] Figure 1 It is the overall structure schematic diagram of the utility model;

[0021] Figure 2 It is the internal structure schematic diagram of the clamping mechanism in the utility model;

[0022] Figure 3 It is Figure 2 The enlarged structure schematic diagram of A area in it;

[0023] Figure 4 It is the side view structure schematic diagram of the annular rack in the utility model;

[0024] Figure 5 It is the side view structure schematic diagram of the clamping mechanism in the utility model.

[0025] In the figure: 1, adjusting mechanism;101, top frame;102, electric slide rail;103, electric slide block;104, connecting frame;105, electric cylinder one;106, first support hoop;107, limiting cylinder;108, second support hoop;109, motor one;110, gear;2, clamping mechanism;201, rotating column;202, motor two;203, annular rack;204, electric cylinder two;205, limiting hole;206, movable rod;207, slide rod;208, push plate;209, screw;210, connecting sleeve;211, extension rod;212, clamping plate. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] As Figures 1-5 Indicated, an angle adjusting structure for pipette detection, including adjusting mechanism 1, the lower portion of adjusting mechanism 1 is provided with clamping mechanism 2, adjusting mechanism 1 includes top frame 101, the bottom of top frame 101 is fixedly installed with electric slide rail 102, and electric slide rail 102 bottom is slidably connected with electric slide block 103, as Figure 1 Indicated, electric slide block 103 moves along the inner side of electric slide rail 102, thereby driving clamping mechanism 2 to move forward and backward as a whole;

[0028] The clamping mechanism 2 comprises a rotating column 201, one side of the rotating column 201 is fixedly provided with a motor two 202, the outer wall of the rotating column 201 and the side away from the motor two 202 is fixedly provided with an annular rack 203, the bottom of the rotating column 201 is slidably connected with two extension rods 211, the outer wall of the two extension rods 211 is fixedly connected with two clamping plates 212, and the two clamping plates 212 are symmetrically arranged on the two sides of the rotating column 201, as shown in Figure 2 The extension rod 211 is limited at the bottom of the rotating column 201 and can only move in a straight line direction;

[0029] The bottom of the electric sliding block 103 is fixedly provided with a connecting frame 104, one side of the connecting frame 104 is fixedly provided with a limiting cylinder 107, the inner wall of the limiting cylinder 107 is slidably connected with a second supporting hoop 108, the bottom end of the second supporting hoop 108 extends below the limiting cylinder 107, and the inner wall of the second supporting hoop 108 is rotatably connected with the rotating column 201, as shown in Figure 1 The top end of the second supporting hoop 108 can only move along the inner side of the limiting cylinder 107, so as to ensure that the clamping mechanism 2 stably rises and falls;

[0030] The bottom surface of the second supporting hoop 108 is further fixedly provided with a motor one 109, the motor one 109 is a stepping motor, the rotation angle of the output shaft of the motor one 109 can be accurately adjusted; the output shaft of the motor one 109 extends below the annular rack 203, and the output shaft of the motor one 109 is fixedly connected with a gear 110, the outer side wall of the gear 110 is meshedly connected with the annular rack 203, the outer wall of the connecting frame 104 and the side away from the limiting cylinder 107 is fixedly provided with an electric cylinder one 105, the extending end of the electric cylinder one 105 faces downward, and the extending end of the electric cylinder one 105 is fixedly connected with a first supporting hoop 106, the inner wall of the first supporting hoop 106 is rotatably connected with the rotating column 201, as shown in Figure 2 The gear 110 drives the annular rack 203 to rotate;

[0031] The output shaft of the second motor 202 penetrates into the inside of the rotating column 201, and the output shaft of the second motor 202 is fixedly connected with a screw rod 209, the outer wall of the screw rod 209 is provided with threads on both sides, the threads on both sides of the screw rod 209 are opposite to each other, the outer wall of the screw rod 209 is further provided with a connecting sleeve 210 in a threaded mode, the bottom ends of the two connecting sleeves 210 are fixedly installed with the top of the extension rod 211 respectively, the upper end of the middle inner wall of the rotating column 201 is fixedly installed with the second electric cylinder 204, the lower part of the middle inner wall of the rotating column 201 is provided with a limiting hole 205, the extension end of the second electric cylinder 204 penetrates out of the rotating column 201 and is fixedly installed with a movable rod 206, the middle part of the movable rod 206 is fixedly installed with a sliding rod 207, the outer wall of the movable rod 206 and below the sliding rod 207 are further fixedly installed with a push plate 208, the outer wall of the sliding rod 207 is slidably connected along the inner side of the limiting hole 205, the push plate 208 is located behind the clamping plate 212 as a whole, the two clamping plates 212 are both arc-shaped as a whole, and the inner walls of the two clamping plates 212 are both fixedly connected with buffer pads, as shown in Figure 5 The second electric cylinder 204 drives the movable rod 206 to approach the piston of the pipette to be detected, so that the push plate 208 extrudes the piston of the pipette, and the pipette suction head realizes the suction and discharge of the liquid in the measuring cup.

[0032] The working principle of the utility model is as follows:

[0033] When the device is used, the electric sliding block 103 moves along the inner side of the electric sliding rail 102, so that the clamping plate 212 moves above the pipette to be tested, then the extension end of the first supporting hoop 106 of the electric cylinder 105 drives the clamping mechanism 2 to descend as a whole, so that the clamping plate 212 is surrounded on both sides of the pipette, at this time, the second motor 202 is started to drive the screw rod 209 to rotate, the threads opposite to each other on both sides of the screw rod 209 drive the connecting sleeve 210, so that the extension rod 211 moves along the inner side of the rotating column 201 in the opposite direction, the interval of the clamping plate 212 is shortened and the pipette is clamped and fixed;

[0034] Then, according to the above method, the extension end of the telescopic electric cylinder 105 is used, the electric sliding block 103 moves along the inner side of the electric sliding rail 102, so that the pipette is transferred above the measuring cup, at this time, the first motor 109 drives the gear 110 to rotate, because the gear 110 and the annular rack 203 are meshed with each other, so that the rotating column 201 rotates in the inner side of the first supporting hoop 106 and the second supporting hoop 108, the extension rod 211 drives the clamping plate 212 to rotate with the rotating column 201, and the pipette in the inner side of the clamping plate 212 also changes the orientation, so that the suction head can abut against the inner wall of the measuring cup.

[0035] The above has carried out the detailed description to one embodiment of the utility model, but the content described is only the preferred embodiment of the utility model, cannot be considered for limiting the implementation scope of the utility model. All equal changes and improvements etc. that are made in the utility model application scope should still belong to the patent coverage scope of the utility model.

Claims

1. An angle adjusting structure for pipette detection, comprising an adjusting mechanism (1), a clamping mechanism (2) is arranged below the adjusting mechanism (1), the adjusting mechanism (1) comprises a top frame (101), a motorized slide rail (102) is fixedly installed at the bottom of the top frame (101), and a motorized slide block (103) is matched and slidingly connected at the bottom of the motorized slide rail (102); characterized in that the clamping mechanism (2) comprises a rotating column (201), a motor two (202) is fixedly installed on one side of the rotating column (201), an annular rack (203) is fixedly installed on the outer wall of the rotating column (201) and located away from the motor two (202), two extension rods (211) are slidingly connected at the bottom of the rotating column (201), a clamping plate (212) is fixedly connected to the inner side of the outer wall of each of the two extension rods (211), and the two clamping plates (212) are symmetrically arranged on the two sides of the rotating column (201); wherein the bottom of the motorized slide block (103) is fixedly installed with a connecting frame (104), a limiting cylinder (107) is fixedly installed on one side of the connecting frame (104), a second supporting hoop (108) is slidingly connected to the inner wall of the limiting cylinder (107), the bottom end of the second supporting hoop (108) extends to below the limiting cylinder (107), and the inner wall of the second supporting hoop (108) is rotationally connected with the rotating column (201); wherein the bottom surface of the second supporting hoop (108) is also fixedly installed with a motor one (109), the output shaft of the motor one (109) extends to below the annular rack (203), the output shaft of the motor one (109) is fixedly connected with a gear (110), and the outer side wall of the gear (110) is meshingly connected with the annular rack (203).

2. The angle adjustment structure for pipette detection according to claim 1, wherein, An electric cylinder one (105) is fixedly installed on the outer wall of the connecting frame (104) and located away from the limiting cylinder (107), the extending end of the electric cylinder one (105) faces downward, and the extending end of the electric cylinder one (105) is fixedly connected with a first supporting hoop (106), the inner wall of the first supporting hoop (106) is rotationally connected with the rotating column (201).

3. The angle adjustment structure for pipette detection according to claim 2, wherein, The output shaft of the motor two (202) penetrates into the inside of the rotating column (201), the output shaft of the motor two (202) is fixedly connected with a lead screw (209), threads are arranged on the outer walls of the two sides of the lead screw (209), the threads on the two sides of the lead screw (209) face opposite directions, and the outer walls of the two sides of the lead screw (209) are also threadedly sleeved with connecting sleeves (210), and the bottom ends of the two connecting sleeves (210) are respectively fixedly installed with the extension rods (211).

4. The angle adjustment structure for pipette detection according to claim 3, wherein, An electric cylinder two (204) is fixedly installed on the inner wall of the middle part of the rotating column (201) and located at the upper end, and a limiting hole (205) is formed in the inner wall of the middle part of the rotating column (201) and located below.

5. The angle adjustment structure for pipette detection according to claim 4, wherein, The extension end of the electric cylinder (204) penetrates out of the rotating column (201) and is fixedly installed with a movable rod (206), the middle part of the movable rod (206) is fixedly installed with a sliding rod (207), and the outer wall of the movable rod (206) and located below the sliding rod (207) is also fixedly installed with a push plate (208).

6. The angle adjustment structure for pipette detection according to claim 5, wherein, The outer wall of the sliding rod (207) is slidably connected along the inner side of the limiting hole (205), and the push plate (208) is located behind the clamping plate (212) as a whole.

7. The angle adjustment structure for pipette detection according to claim 6, wherein, Both of the two clamping plates (212) are arc-shaped, and the inner side walls of the two clamping plates (212) are fixedly connected with buffer pads.

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